facer



(No Model.)

R WHEEL TIRES.

Patented Feb. 6, l8 3.

FIG].

i J\ mv QB Q. 5% F a. 4m BU W Z /z I w WITNESSES:

JJY'VENTORS.

N. PEIERS. PMXo-Ulhopaphan wuhingwn. DJ.

' UNITED STATES PATENT 'OFFICE.

JAMES A. FACER AND ADOIIPH SGHAUB, OF PHILADELPHIA, PENNSYLVA- NIA; SAID SOHAUB ASSIGNOR TO SAID FAOER.

DEVICE FOR MANUFACTURING CAR-WHEEL-TIRES.

SPECIFICATION formingpart of Letters Patent No. 271,823, dated February 6, 1883.

Application filed September 29, 1882.

United States, both residing in Philadelphia,

Pennsylvania, have invented certain Improvements in Power-Hammers, of which the fol lowing is a specification.

Our invention relates to a certain improvero mentin the anvil andhammer-dies of a powerhammer for forging car-wheel tires or tireblanks, the object of our invention being to insure the proper and efficient action of the (lies in punching the blanks or in hammering either the flat faces or the edges of the same.

In the accompanying drawings, Figures 1, 2, 3, and 4 are slde views ofthe anvil and hammer-dies of a. power-hammer, showing our improvement and the uses of the same; and Fig.

5, a perspective view of the hammer-die and anvil.

In manufacturing tire-blanks it is the usual practice to first forge asolid disk and to punch the same by onepower-hammer, and, after this preliminary forging has, with others of like character, become cool, to reheatthem and convert them into the desired blanks by another power-hammer, the anvil of which is provided with a projection, on which the forging, now in the form ofa ring,is hung, so that the hammerdie can be brought to bear on the edge of the ring.

In carrying out our invention we use but one power-hammer, of which A is the hammer-die, and B the anvil, the former, instead of being the usual shape, having in front a projection, to, of the character best observed in Fig. 5, and on the front of the anvil, immediately below the projection 11 of the hammer- 0 die, is a projection, b. vIn the first instance the bloom is forged into the shape of a solid disk, this being accomplished in the manner shown in Figs. 1 and 2, by and between the usual face, in, of the hammer-die and the face n 5 of the anvil. After the disk has been reduced to the condition shown at m, Fig. 3, a hole is punched through its center by holding a suitable pnnch, 1, while it receives the blows of the hammer. The ring thus formed by punch- (No model.)

ing the hole is now placed on the projection b of the anvil, as shown in Fig. 4, so that the projection a of the hammer-die can be brought to bear on the edge of the ring, which is turned round on the projection 11 as the blows are repeated until the ring has been enlarged sufficiently to form the tire-blank. At intervals during the latter operation the ring maybe removed from the projection of the anvil, in order that it may be placed on the face a of the same, when the protuberances made by hammering the edge have to beflatteued down. In order to prevent the projection on of the hammer-die from acting on the blank while the flat sides of the same are being hammered, we cut away the lower edge of the said projection, as shown, so that it is some distance above the lower edge of the main die; and in order to produce on the edge of the blank the necessary flange, we form in the uuderface of the projection a, at its junction with the main die, agroove, w.

We are aware that English Patent No. 665 of 1865 describes a hammer in which one side of the anvil is cut away and provided with a projection or horn, on which the tire-blank is hung while its edge is being hammered; but when the anvil is thus cut away not only is the effective face of the same reduced, so as to materially interfere with the hammering of the flat face of the blank, but it practically precludes the use of the anvil for punching the blank, and the English patentee, in his specification, states that the blank is first forged into the shape of a ring and then reheated prior to being subjected to the action of his hammer.

In our hammer the face it of the anvil-die is of substantially the same dimensions as the main portion m of the hammer-die, and conseqnently the operations of punching the blank or of hammering the flat faces of the same can be performed, as well as the operation ot'hammering the edge of the blank, and reheating of the latter is thus avoided.

We claim as our invention- 1. The combination of the hammer-die A, comprising the main portion m, with central projection, a, in front, and the anvil-die B, having a projection, b, and flatface n, the proing a projection, a, with a groove, 20, in its jection a being above the projection b, and the under face, as set forth.

face n of the anvil-die being of substantially In testimony whereof we have signed our the same dimensions as the portion m of the names to this specification inthe presence 0f 15 5 hammer-die, as set forth. two subscribing witnesses.

2. The combination of the anvil-die B with w the hammer-die A, having a projection, a, the I lower face of which is some distance above the I r face m of the said die, as set forth. Witnesses: l0 3. The combination of the anvil-die B and HARRY DRURY,

its projection b with the hammer-die A, hav- HARRY SMITH. 

